Bottle cap opener



FIG. 1 is a front view of a bottle cap opener showing the design.

FIG. 2 is a back view thereof.

FIG. 3 is a top plan view thereof.

FIG. 4 is a bottom plan view thereof.

FIG. 5 is a left side view thereof.

FIG. 6 is a right side view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines depict portions of the bottle cap opener which form no part of the claimed design. 

CLAIM The ornamental design for a bottle cap opener, as shown and described. 